Abstract:This document describes how to use z/OS 2.1 PDSE member generations with ISPF and IBM Data Set Commander for z/OS. PDSE member generations support is provided in z/OS 2.1 DFSMS and ISPF, along with optional product IBM Data Set Commander for z/OS V8.1 (formerly known as IBM ISPF Productivity Tool for z/OS) - FMID HIQI810. PDSE member generations allows you to have multiple copies or versions of a member.